Automatic car-stop.



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'Pgtnavsepn 22,1908.

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'to in `the following description and indicated designates the shaft of a mine and 2 the sump tread portion of the adjacent` rail when the 11 reinforced by a web 12, it being understood that when thestop arms .S are swung wILL E. mwitns. or

A .UTOMATIG To all -uhom it may concern.: l Be it known that I, WILL E. Dawkins, citizen of the lfnited States. residing at- O'Fallon. in the county of St. Clair and State of Illinois. huye invented certain new and useful Improvements in Automatic Car- Stops, of which the following is a specification.

The object of this invention is'an improved construction of means for preventing coal or other cars from ruiming into the sump at the bottom of a mine shaft,' andthe invention consists in certain constructions, arrangements and combination of the 'parts shall hereinafter fully describe and For a full understanding of the invention, reference is to be had to' the following description and accompanying drawings in whicl:

Figure l is a top plan view of my appa-ratus; Fig. 2 is a sectional view on the line 3 3 in Fig. 1; Fig. 3 isa transverse. sectional view on the line 3*-3 in Fig. 1. Fig. 4 is a view similar to Fig. 3 but looking in the opposite' direction:l and Fig. 5 is a topplan view of a portion of the apparatus showing the parts in different position from that shown in Fig. 1.

Corresponding and like parts are referred in all the views of the drawings by the same reference characters. A.

Referring to the drawings the numeral 1 thereof below the diamond floor or bottom 3 of the shaft. 4 vdesignates the cage which is adapted to be raised and lowered in the shaft by any suit-able hoisting means and which is movable in guides 5,.the cage being provided with rails 6 which, in the lowered position of the cage register with the ends of the rails 7 on the floor 3.

Incarrying o ut my invention, I provide two laterally swinging stop arms S that are hinged 'at oneend to fish plates 9 secured preferably to the outer sides of the rails 7,. each of said armsearryingat its rear free end an angularv bracket' l() which. is arranged to p1 ojett:v vupwardly and inwardly from thearm is' moved. in on;` direction. Each'angular bracl-et 1 0 is formed with a curved buffer Spetzcation of Letters Patent. Application med April 27, 190s. serial No. 429,545.

.TENT oFFIoE. o"r.-\LL`o'N; ILLINOIS. .l i

cmsror.

Patented sept. 22, 1908.

inwardly towards each other, the buffers will extend over and above therails in alimentent with the tread portions thereof so as to effectu'ally stop a carat theinouth of the sump.

In order to automatically swirg the arms inwardly when the'c'age is raised above the ends of the rails 7 Aand to automatically swingthe arms S inthe opposite direction to clear the rails 7 when the cage is lowered in aline ment therewith, I have provided a. shaft 14 65 which extends 'longitudinally bet-Ween the' rails 7 and which is mounted for a limited or partial rota-ry movement about its longitudinal axis.' The shaft lftcarries two oppositely disposed cranks l5 and links 16 are 70 connected to the respect-ive cranks at one-g end, and to -the respective stop arms at their opposite ends. At that end which is nearest to the sump.y the shaft 14 carries a radiallyr disposed lever 17 provided at one arm with h 75 pin 1S adapted to project into the path of the floor of the cage l so that the lever will be struck as the cage descends and the shaft rocked in a direction to swing the stop arms outwardly away from the rollers and from so under the wheels of the car'standing on the railslat the mouth of 'the sump, so 'that the coal can be passedonto the cage. In order to automat ically rock the sha-ft 14 in the opposite direction upon the raising of the cage above the mouth of t-he sump, a spring 19 is secured vto the rock shaft 14 or a weight may be employed for this purpose.

From the foregoing description in connection with the accompanying drawings, it will be understood that as the cage descends and arrives at the bottom of the shaft, the shaft 14 will be automatically rocked and swing the stop arms outwardly while as soon as the cage rises, the stop arms will be automat' 95 ically swung inwardly and carry'their buffers over the rails 7 so asto hold the car onV the rails 7 at the mouth of the sump and efectu` ally prevent the car' from falling into the sump with the consequent damage, delay, 133' l Yost in moving the car lto the cage after the cage has been lowered to shaft.. y

Having thus described the invent-ion, what,

is claimed asiiew is: :v i l.; The coml'iina-tioii wit-h a sliaft'liaxiiig an t the bottom of the entrance way', a car movable in the shaft. cary bers intermediatev oftheir ends, 'said rock i,

shaftJ beingfoiiiied with a cranked end and a pin for said end and arranged to project downwardly in said shaft. an the platform of a car.l i

^ 12. The combination with a. railroad track, comprisincr ties and rails therefor, of a plurality of tish plates formed with apertures.

be moved by swinging arms pivotally secured to the fish plates formed with raised ends arranged to ride .the rails of the' track, and'- means for l .moving said raised ends over the 'rails of said l l track arranged to be actuated by the rer Lical move'neiitof a car inla'shaft. A

3. The combination with arailroad track comprising tiesv and -rails therefor, of Vfish plates formed with apertures Secured to outer sides of the rails swinging members pivot-ally secured to the lish plates, ea 3h of said swing- -ing members being formed with raised end poi-tions i'irra'nged to be moved over the top of the rails and when so moved-to act as buffers, meansengaged by a vertically moving car'for moving theraised ends of said swinging rails, an a spring for controlling said moving means. In testimony whereof I ax my signature in presence of two Witnesses.

WILL E. DAVVKINS. [LL s] Witnessesi DAVE ROBERTS, ERNEST WARNER. 

